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                HEDP
                HEDP
                EDTMPA is white crystal powder at room temperature, with melting point 215-217℃, hard to be dissolved in water, the solubility is less that 5% at room temperature, easy dissolved in ammonia. 
                Features

                Ethylene Diamine Tetra (Methylene Phosphonic Acid) EDTMPA (Solid)

                CAS No 1429-50-1 Dequest: 2040

                Molecular Formula: C6H20N2O12P4 Molecular weight: 436.13

                Properties:

                EDTMPA is white crystal powder at room temperature, with melting point 215-217℃, hard to be dissolved in water, the solubility is less that 5% at room temperature, easy dissolved in ammonia. EDTMPA has strong metal ion chelating capacity, whose chelating constant with cuprum ion is larger than that of EDTA.

                Specification:

                Items

                Index

                Appearance

                White crystal powder

                Active acid (as EDTMPA)%

                96.0 min

                Total phosphonic acid(as PO43-)%

                82.0 min

                Chloride (Cl-) %

                0.1 max

                Moisture %

                2.0 max

                Fe, mg/L

                5.0 max

                pH(1% water solution)

                2.0 max

                Package and Storage:

                25kg inner liner polyethylene (PE) bag, outer plastic woven bag, with agreement with export environment requirement, or confirmed by clients. Storage for one year in room shady and dry place.

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